Girls in the U.S. are getting their first period earlier than in decades past. Researchers say there are multiple factors causing early puberty, including obesity and environmental pollutants. Girls ...

Did you know that a girl’s first period, known as menarche, is an indicator of her long-term hormonal health and future fertility? Sounds surprising, doesn’t it? While many women rarely think about ...

A concerning new study conducted by Dr. Shruthi Mahalingaiah of the Harvard T.H. Chan School of Public Health has supported the claim that American girls are getting their periods earlier in life. The ...

Girls who grow up eating a healthier diet than their peers may be less likely to get their first menstrual periods at an earlier age — regardless of height or body mass index — a new study suggests.

There is unexpectedly large variation in height growth in girls after their first period. Every second girl grows either more or less in length than the 6–8 centimeters that is considered standard.

Menstruation is a natural biological process experienced by nearly half the global population. Yet, for many girls, the first period arrives as a surprise—often misunderstood, feared, or even ...

Girls are getting their periods earlier and it is taking longer for their menstrual cycles to regulate – trends that are putting more girls at risk of health problems later in life. The average age of ...

Anna Lee Beyer writes about mental health, relationships, parenting, and books for Huffington Post, Romper, Slate, Glamour, Parents, and others. A first menstrual cycle usually occurs between the ages ...

There is unexpectedly large variation in height growth in girls after their first period. Every second girl grows either more or less in length than the 6-8 centimeters that is considered standard.